中国石油大学学报（自然科学版）2026，Vol.50Issue(3)：109-122,14.DOI:10.3969/j.issn.1673-5005.2026.03.009
内外流激励下深海水合物双层管柱非线性振动特性试验
Experiment on nonlinear vibration characteristics of double layer pipe columns in deep sea hydrate wells under internal and external flow excitation
摘要
Abstract
An experimental simulation platform for the vibration of double-layer mining riser in deep-sea hydrate wells under internal and external flow excitation was developed in this study based on the principle of similarity to effectively explore its vibration mechanism.The influences of solid particle size,phase ratio,three-phase flow velocity,and external flow velocity on the vibration response characteristics and nonlinear behavior of internal continuous tubing were investigated.It is found that,the strong vibration positions of the vertical and horizontal sections of the mining string are different.In the vertical sec-tion,it is mostly located below the middle section(e.g.1 880 mm from the bottom),while in the horizontal section,it is mostly located 500 mm from the bend position.The vertical section of the mining riser can exhibit a motion trajectory of ob-lique straight line,wide oblique straight line,or approximately wide oblique straight line,while the horizontal section is mostly of a chaotic trajectory or an"8"-shaped chaotic trajectory.The decrease in particle mesh size and the increase in solid phase proportion can be reflected in the difficulty and accumulation of particle transport,leading to a decrease in vibra-tion displacement amplitude and vibration energy(such as the root mean square displacement reduced from 280 mm to 120 mm).The increase of the proportion of gas phase can lead to changes in the flow state of multiphase flow inside the pipe,re-sulting in more obvious internal multiphase flow disturbances.The vibration displacement of the mining riser shows an in-creasing trend.The increase in three-phase flow velocity can further induce vibration of the mining string,and there is a cer-tain flow velocity that will resonate with the string system(such as 1.75 m/s for vertical section and 2.00 m/s for horizontal section),resulting in a sudden increase in the amplitude of vibration displacement.关键词
天然气水合物/气-液-固三相流/流致振动/振动特性/非线性行为Key words
natural gas hydrates/gas-liquid-solid three-phase flow/flow induced vibration/vibration characteristics/nonlin-ear behavior分类
能源科技引用本文复制引用
郭晓强,杨恪伦,姜哲夫,徐捷,吕俊霖,李欣业..内外流激励下深海水合物双层管柱非线性振动特性试验[J].中国石油大学学报（自然科学版）,2026,50(3):109-122,14.基金项目
国家自然科学基金项目(52105125) （52105125）
河北省青年科学基金项目(B类)(E2025202002) （B类）
河北省高等高校科学研究项目(JCZX2025001) （JCZX2025001）
中国博士后自然科学基金项目(2024M750718) （2024M750718）
河北省燕赵黄金台聚才计划骨干人才项目(博士后平台)(B2024005002) （博士后平台）
四川省科技计划(2025YFHZ0285,2026YFHZ0097) （2025YFHZ0285,2026YFHZ0097）
